| Date | Wed, 12 Feb 2020 10:32:10 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 0/8] tracing vs rcu vs nmi |
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Hi all,
These here patches are the result of Mathieu and Steve trying to get commit 865e63b04e9b2 ("tracing: Add back in rcu_irq_enter/exit_irqson() for rcuidle tracepoints") reverted again.
One of the things discovered is that tracing MUST NOT happen before nmi_enter() or after nmi_exit(). I've only fixed x86, but quickly gone through other architectures and there is definitely more stuff to be fixed (simply grep for nmi_enter in your arch).
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